HGC system is the important component in the control system of coldroll, it can control the rolling gap size of stand, and direct effect the shape of plate.

• 液压压下控制系统是冷连轧机控制系统中十分重要的组成部分，它主要实现机架辊缝大小的控制，对于轧制板材的板形有着直接的影响。